CN113208200A

CN113208200A - Ventilative type repeatedly usable's antibiotic protective clothing

Info

Publication number: CN113208200A
Application number: CN202110618219.8A
Authority: CN
Inventors: 琚河同; 杨永生
Original assignee: Henan Manborui New Material Technology Co ltd
Current assignee: Henan Manborui New Material Technology Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-08-06

Abstract

The invention discloses a breathable reusable antibacterial protective garment, wherein the fabric of the protective garment sequentially comprises an outer layer, an intermediate layer and an inner layer from outside to inside, wherein the inner layer is antistatic flame-retardant PP non-woven fabric; the middle layer is a protective filter layer and consists of a nanofiber membrane layer and a bonding layer; the outer layer is water-repellent and flame-retardant SMS non-woven fabric; the nanofiber membrane layer is a three-dimensional net structure formed by superfine fibers with the diameter of 300-500 nm and formed by high polymer materials under the action of an electrostatic field; the antibacterial agent is added into the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution in a proportion of 0.1% -1%. The protective clothing has good air permeability, high filtering efficiency and higher antibacterial property, and reaches the required protection standard; and the filter can be repeatedly used after disinfection, the filtering and antibacterial performance can still be guaranteed during repeated use, the cost can be effectively reduced, and the energy can be saved.

Description

Ventilative type repeatedly usable's antibiotic protective clothing

Technical Field

The invention relates to the technical field of protective clothing, in particular to breathable reusable antibacterial protective clothing.

Background

Protective clothing is worn by workers in special environments and generally has the functions of isolating germs, harmful ultrafine dust, acidic solution and salt solution. The types of protective clothing commonly used at present are: 1. ordinary pp non-woven fabrics protective clothing, the characteristics are ventilative, dustproof, but waterproof, do not have the function of keeping apart the germ, are used for ordinary clean environment to use, for example electronics factory, plant, food factory, industrial production workshop are dustproof etc. and are used in general environment. 2. The film-covered non-woven protective clothing is air-tight and waterproof, but has good bacterium isolation effect, obvious front and back distinguishing, non-woven fabric on the body-contacting side, no allergy, good hand feeling, and a layer of plastic film on the outer surface to prevent liquid leakage, and is used in the places with pollution and virus. To tectorial membrane non-woven fabrics protective clothing, though have fine fungus effect of isolating, airtight, inside steam that forms easily, the travelling comfort is poor, is unfavorable for staff's healthy, and steam can form the fog on face guard or goggles, influences staff's sight.

Meanwhile, the protective clothing with air permeability and antibacterial property has extremely high raw material cost, is only used when the highest-grade medical protective clothing is manufactured, does not have the condition of general popularization and application, and can not be used repeatedly after cleaning and disinfection.

Disclosure of Invention

The invention aims to provide the breathable reusable antibacterial protective clothing which has good breathability and high-efficiency antibacterial performance and can be repeatedly used after being cleaned and disinfected.

In order to solve the technical problems, the invention adopts the following technical scheme:

designing a breathable reusable antibacterial protective garment, wherein the fabric of the protective garment sequentially comprises an outer layer, an intermediate layer and an inner layer from outside to inside, and the inner layer is antistatic flame-retardant PP non-woven fabric; the middle layer is a protective filter layer and consists of a nanofiber membrane layer and a bonding layer; the outer layer is water-repellent and flame-retardant SMS non-woven fabric;

the nanofiber membrane layer is a three-dimensional net structure formed by superfine fibers with the diameter of 300-500 nm and formed by high polymer materials under the action of an electrostatic field; the antibacterial agent is added into the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution in a ratio of 0.1% -1%.

Preferably, the nanofiber membrane layer is prepared from polyvinylidene fluoride serving as a raw material through electrostatic spinning.

Preferably, the antibacterial agent is one or a combination of more of silver ions and compounds thereof, quaternary ammonium salt compounds, vanillin or ethyl vanillin compounds.

Preferably, the outer layer, the middle layer and the inner layer are compounded together in a laminating and bonding mode.

Preferably, the bonding layer is a polyolefin material, is adhered to the surface of the inner layer and plays a role in hot-press bonding, so that the nanofiber membrane layer and the inner layer are bonded together in a hot-press manner.

Preferably, the middle layer further comprises a base layer, the nanofiber membrane layer is bonded with the base layer through a bonding layer in a hot-pressing mode, and the base layer is adjacent to the lining.

Preferably, the base layer is melt-blown cloth or hot air cotton. The basic unit is used for bearing and fixed nanofiber membrane to improve the intensity of nanofiber membrane, solved the easy damaged problem of nanofiber membrane at the in-process of wearing, make protective clothing surface fabric have used repeatedly intensity and toughness.

The fabric adopted by the protective clothing comprises three layers, wherein the outer layer is a water-repellent flame-retardant SMS non-woven fabric which has good air permeability, water resistance and flame retardance, so that the protective clothing has water resistance and liquid permeation resistance, and simultaneously provides a protective effect for the middle layer and the inner layer of the protective layer; the inner layer adopts antistatic and flame-retardant PP non-woven fabric, so that the antistatic effect can be achieved, and static electricity generated by friction between the protective clothing and clothes on the body of a person can be avoided; the middle layer is a protective filtering layer, and the nanofiber membrane layer with the functions of protection, filtration and antibiosis is prepared by an electrostatic spinning process, and the antibacterial agent is added into the electrostatic spinning solution, so that the nanofiber membrane layer produced by the electrostatic spinning equipment has the functions of filtration, bacteriostasis and sterilization.

The invention has the beneficial effects that:

1. the protective clothing of the invention has high protection: the nanofiber membrane prepared by electrostatic spinning is used as a protective filtering layer, the filtering efficiency can reach more than 99 percent, and the water permeability resistance and the synthetic blood resistance can meet the industrial requirements; high comfort: the moisture permeability of the protective clothing fabric can reach 9000 g/square meter d, the foot is more than 3 times of the national standard, and meanwhile, the air resistance of the material is lower than 150Pa, so that the water vapor on the surface of a body can be removed in time, and the wearing comfort is ensured; high safety: different from the traditional protective clothing with the protective layer directly exposed to the outside, the protective clothing adopts a multilayer composite process, the inner layer and the outer layer adopt non-woven fabrics, the protective filtering layer in the middle is protected, and meanwhile, the breaking strength and the breaking elongation of the composite fabric respectively reach 150N and 140 percent, so that the scratching damage in the wearing process can be effectively avoided, and the use safety is greatly improved.

2. The three layers of fabrics have air permeability and water repellency, and the layers of the fabrics are compounded in a laminating bonding mode to form the protective clothing, so that the prepared protective clothing has the functions of filtering protection and low-resistance air permeability, and the filtering effect on particles with the diameter of 0.3 mu m is more than or equal to 95%.

3. The protective clothing can be used repeatedly after being soaked, washed and disinfected by ozone or ultraviolet rays and the like under the condition that the surface is complete and has no damage; the nano fiber filter layer made of the PVDF material can ensure that the structure of the protective clothing is not damaged in the cleaning and disinfecting process due to the good physical and chemical properties and the special bonding process, and the filtering performance can be kept above 90 percent when the protective clothing is repeatedly used for 5 times without losing the antibacterial function.

4. The protective clothing has good air permeability, can improve the comfort level when being worn and reduce the body burden of workers; the filter has high filtering efficiency and higher antibacterial property, and reaches the required protection standard; and the filter can be repeatedly used after disinfection, and for some common-grade application environments, the filtering and antibacterial properties can still be guaranteed during repeated use, so that the cost can be effectively reduced, and the energy can be saved.

Drawings

FIG. 1 is a schematic structural view of a fabric of the breathable reusable antibacterial protective garment of the present invention;

FIG. 2 is a schematic structural view of another embodiment of a fabric of the breathable reusable antibacterial protective garment of the present invention;

reference numbers in the figures: 1 is an outer layer, 2 is a nanofiber membrane layer, 3 is a bonding layer, 4 is an inner layer, and 5 is a base layer.

Detailed Description

The following examples are given to illustrate specific embodiments of the present invention, but are not intended to limit the scope of the present invention in any way. The apparatus elements referred to in the following examples are, unless otherwise specified, conventional apparatus elements; the industrial raw materials are all conventional industrial raw materials which are sold on the market, if not specifically mentioned.

Example 1: a breathable reusable antibacterial protective garment, as shown in figure 1, is characterized in that the fabric of the protective garment sequentially comprises an outer layer, an intermediate layer and an inner layer from outside to inside, wherein the inner layer is antistatic flame-retardant PP non-woven fabric; the middle layer is a protective filter layer and consists of a nanofiber membrane layer and a bonding layer; the outer layer is water-repellent and flame-retardant SMS non-woven fabric;

the nanofiber membrane layer is a three-dimensional net structure formed by superfine fibers with the diameter of 300-500 nm and formed by high polymer materials under the action of an electrostatic field; the antibacterial agent is added into the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution in a proportion of 0.1% -1%.

The nano-fiber membrane layer is prepared from polyvinylidene fluoride serving as a raw material through electrostatic spinning, the antibacterial agent is one or a combination of more of silver ions and compounds thereof, quaternary ammonium salt compounds, vanillin or ethyl vanillin compounds, and the outer layer, the middle layer and the inner layer are compounded together in a laminating and bonding mode. The adhesive layer is made of polyolefin material and is adhered to the inner side of the lining layer, so that the nanofiber membrane and the lining layer are bonded together in a hot-pressing mode.

Example 2: a breathable reusable antibacterial protective garment, referring to fig. 2, which is different from the embodiment 1 in that the intermediate layer further comprises a base layer, the nanofiber membrane layer is thermally and pressure bonded to the base layer through a bonding layer, and the base layer is adjacent to the lining. The base layer is melt-blown cloth or hot air cotton. The adhesive linkage glues and spouts on the basic unit, again with nanofiber membrane hot pressing bonding together, plays the effect of fixing and bearing nanofiber membrane, makes nanofiber membrane's obdurability higher, and the basic unit adopts melt-blown cloth or hot-blast cotton, can further improve the protection filtering action in intermediate level.

The protective garment of the invention has the following properties:

1. high protection performance: the nanofiber membrane prepared by electrostatic spinning is used as a protective filtering layer, the filtering efficiency can reach more than 99 percent, and the water permeability resistance and the synthetic blood resistance can meet the industrial requirements;

2. high comfort: the moisture permeability of the protective clothing fabric can reach 9000 g/square meter d, the foot is more than 3 times of the national standard, and meanwhile, the air resistance of the material is lower than 150Pa, so that the water vapor on the surface of a body can be removed in time, and the wearing comfort is ensured;

3. high safety: different from the traditional protective clothing with the protective layer directly exposed to the outside, the protective clothing adopts a multilayer composite process, the inner layer and the outer layer adopt non-woven fabrics, the protective filtering layer in the middle is protected, and meanwhile, the breaking strength and the breaking elongation of the composite fabric respectively reach 150N and 140 percent, so that the scratching damage in the wearing process can be effectively avoided, and the use safety is greatly improved.

The protective clothing can be used repeatedly after being soaked, washed and disinfected by ozone or ultraviolet rays and the like under the condition that the surface is complete and has no damage; the nano fiber filter layer made of the PVDF material can ensure that the structure of the protective clothing is not damaged in the cleaning and disinfecting process due to the good physical and chemical properties and the special bonding process, and the filtering performance can be kept above 90 percent when the protective clothing is repeatedly used for 5 times without losing the antibacterial function.

While the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various changes can be made in the specific parameters of the embodiments without departing from the spirit of the present invention, and that various specific embodiments can be made, which are common variations of the present invention and will not be described in detail herein.

Claims

1. A breathable reusable antibacterial protective garment is characterized in that the fabric of the protective garment sequentially comprises an outer layer, an intermediate layer and an inner layer from outside to inside, wherein the inner layer is antistatic flame-retardant PP non-woven fabric; the middle layer is a protective filter layer and consists of a nanofiber membrane layer and a bonding layer; the outer layer is water-repellent and flame-retardant SMS non-woven fabric;

2. The breathable reusable antibacterial protective garment according to claim 1, characterized in that the nanofiber membrane layer is made of polyvinylidene fluoride as a raw material by electrospinning.

3. The air-permeable reusable antibacterial protective garment according to claim 1, characterized in that the antibacterial agent is one or a combination of silver ions and compounds thereof, quaternary ammonium salt compounds, vanillin or ethylvanillin compounds.

4. The breathable, reusable, antimicrobial protective garment according to claim 1, wherein the outer layer, the intermediate layer, and the inner layer are laminated together using a lamination bond.

5. The breathable, reusable, antimicrobial protective garment according to claim 1, wherein the adhesive layer is a polyolefin-based material.

6. The breathable, reusable, antimicrobial protective garment according to claim 1, wherein the intermediate layer further comprises a base layer, the nanofiber membrane layer is thermocompression bonded to the base layer by a bonding layer, and the base layer is adjacent to the lining.

7. The breathable, reusable, antimicrobial protective garment according to claim 6, wherein the substrate is meltblown or hot air cotton.